wilson



C.: A. WILSON.`

Thermostat.

' 'Patented July 2.8,- 1363.`

' )fiile-wes.

N, FEYERS. Phnlwuhogmpher. nmingmn, D. c.

CHARLES AT. WILSON, 0F CINCINNATI, OHIO.

Lesers Patent No. 80,436, dated Juzg 28, 186s.

IMPROVEMENT IN THERMOSTATS.

titte .tlgemle referrer tu in tlges @niet tant :mit making part nt ttt stmt.

To ALL WHoII IT MAY coNoERN: I

Be it known' that I, CHARLES A'. WILSON, of Cincinnati, Hamilton county, Stateof Ohio, have invented aY certain new and useful ImprovementI `in Thermostats; aud I do 'hereby declare the following -to be a full,

clear, andexaot description thereof, reference being had to the accompanying drawing making part of. this speciieation.`

My invention consists in placing the set-screw, used for adjusting the valve at a given temperature, on the opposite side of the thermostat to that on which the valve-seat is located, for the purpose of preventing the straining or cracking of the steel plate of the ,thermostat in the action of the Vset-screw, and also enabling the set-screw to act both to adj-ust andcompletely close the valve when-desired; the instrument thus being a thermostat and stop-valve combined.

In the accompanying drawing, 'which is a section zof a thermostat embodying my invention, A B are the steel and brass plates, respectively, ofthe thermostat, properly secured to the outer shell or casing C at a and b.

D is the valve, and E the valve-seat on the end of the discharge-pipe F.

G is the aperture connecting with the steam-heating apparatus. Y

II is the adjusting-screw, which serves both to adjust the valve Vto close ata given temperature', and also to shut the valve entirely, to prevent backward current -when desired.` p Y 'It will be easilynnderstood that the set-screw being located in such a position that its pressure is directed Vtowards the surface on which the plates A B are fastened, there is less liability of straining or cracking the Asteel plate than when the set-screwis on the opposite side, as seen in my previous patents.

I is a chambered plug, which gives convenience for the collection and removal of sediment.

I claim herein as new, and of my inventionp The adjusting and stop-valve screw H,located on the opposite side of the` thermostat-plates to lthe valveseat E, as described, and for the purposegspecied.

In testimony-of which invention, I hereunto set my hand.

` CHARLES A. WILSON.

Witnesses 5. E. M. BOWEN,

JAMES H. LAYMAN. 

